Noise Cancellation using Two Closely Spaced Microphones: Experimental Study witha Specific Model and Two Adaptive Algorithms

Ultrasound based positioning using Time of Flight measurements and crosstalk mitigation

“…For instance, in a two channel system, this phenomenon can be described by the model shown in Fig. 1, which depicts two direct paths and their reciprocal coupling [9]. In opposite to what is proposed in [17], in our case, the inputs of the two paths are generated from the same sound source.…”

A new efficient two-channel backward algorithm for speech intelligibility enhancement: A subband approach

“…h 11 (n) = h 22 (n) = d(n) [5,13]. According to this assumption and if the input signals are real, the two relations (2) and (3) can be rewritten as follows:…”

“…These noise components are resulting from interfering point sources, such as competing speakers, and from coherent and incoherent noise components which are emitted, for example, by household appliances and environments. [1][2][3][4][5].…”

A new regularized forward blind source separation algorithm for automatic speech quality enhancement

“…The convolutive mixture uses a speech signal (French male speaker) sðnÞ and a USASI noise (United state of America Standard Institute, now (ANSI)) bðnÞ. The noisy signals are generated by the specific model proposed in [20,33], which takes into account the effect of the distance between both microphones on the signal characteristic. The latter gives simulated impulse responses h 12 ðnÞ and h 21 ðnÞ [the sampling frequency is Fs ¼ 16 kHz; the length of the impulse responses is L ¼ 64].…”